Apparatus for inflating automobile-tires.



PATENTED MAR. 17, 1908.

J. E D APPARATUS AFFRIN.

AELDOR INPLATING AUTOMOB PLIOATION FILED DB0. 7. 1907 'ILE TIRES' Inventor,

Aty's.

Attest;

wi 0C. L

UNITED STATES T p OFFICE.

ALBERT J'. E. DAFFRIN, OF DIEPPE, FRANCE, ASSIGNOR TO ADDISON ILLINOIS.

L. MELVIN, Ol." CHICAGO,

APPARATUS FOR INFLATING lAU'LOIil/.IIOBILE-TIRIEJS Specification of Letters Patent.

Patented 'Mwd1 1'7. 1908.

Application led December 7, 1907. Serial No. 405,566.

10 ait w/u/t at may concern:

Be it known that I, ALBERT J. E. DAFFRIN, citizen of France, residing at Dieppe, France, have invented new and useful Improvements iii Apparatus. for Iniiating Autoinobile-Tires, of which the following is a specification.

My said invention relates to an improved device or apparatus to be used for ini'lating the tires of automobiles.

I have aimed, in devising my present invention, to produce, at a minimum cost, an extremely simple and etiicient device which could be readily applied to any of the existing types of automobiles, and operated by the engine thereof7 whereby the power of the engine could be used to pump up the tires.

I have further aimed to produce a construction which would avoid all danger of oil passing with the air into the interior of the tire with its',` attendant deteriorating effects thereon, which would be protected from dirt and grease and which would require but little attention.

With these and other objects in view the invention includes the novel features of construct-ion andarrangcment of parts hereinafter described and particularly pointed out in the appended claims.

An ein odi'ment oi: the invention is illus'- trated in the accompanying drawin' in which: Y

F'gure 1 is a sectional elevation and Fig. 2 is a horizontal section Referring by reference characters to this drawingr 0 designates e casing, which is preierably ormed of aluminium to secure minimum Weight with the requisite strength,l and which serves to support the pump and its operating parts, and also to inclose and protect the same from dirt and grease. The casing is provided with iugs or rojcctions a by Which it may be bolted or c ainped to the automobile frame. l/Vithin ,this casing is located a pump barrel or cylinder li on the o posite sides of which are projections c, Wlhich are pivotally supported in bushings d threaded through the side walls of the casing near one end. A tubular piston e extends Within the opposite open end of the cylinder or barrel l), a tight joint being secured between the piston and barrel by packing rings f located in an annular space or rabbct formed by an enlargement t of the barrel.

A bushing g encircling the piston and threaded into the open end oi the enlarged rings and also the compression of the san'ie to Secure a sufficiently tight joint.

l have found that by the use oi' asbestos packing rings I can secure a joint which will remain air tight for long periods ot' time without the necessity of any lubricating material whatever and especially is this true where the packing rings are made of amiantus, which by its fine silky nature, enables it 'to make a tight joint between the two relatively moving parts without -undue friction or overheating. This, coupled with the fact that the valves hereinafter described, require no lubrication, enables me to provide a pump which is 'absolutely free from lubricating material inside oi' the barrel or cylinder and henceall danger of oil being carried from the pump into the interior of the tires is absolutely avoided. The great advantage. of such an ,arrangement will be manifest when ythe rotting or'deteriorating effect ofv oil upon rubber is borne in mind.

The rear or outer end of thc piston or plun ger e has a head y' which is mounted upon a crank pin 7iy of a crank i, carried by a shaft l.' which shaft is designed to be operated by a gear 1 which derives itsA power from the crank shaft or other moving part of the engine by any suitable transmitting geaimg. A clutch s is designed to connect this gear to and disconnect it from the shaft 'if at will, this clutch being operated by any suitable means not necessary to be shown. The plunger or piston has threaded into tho end which is located within the cylinder or barrel b, a removable bushing n which has a Valve seat to receive a check valve n', the stem of which is guided in a tubular part n2 carried by the bushing and which is under the tension of the spring n3. The outer end of the barrel b is provided also with a valve seat which receives the-check valve p which is covered by a cap o threaded upon the outer end ol" the barrel. This cap has' a space within which is located a spring. p which' tends to constantly seat the valve t. The cap is also provided with a projection or' nipple o to which is scoured a rubber tubing 02 of a length sufficient' to enable it to reach to all of the tires of the automobile.

An opening m is provided in the plunger or piston c to permit air to enter the plunger on its outward strokc or when it is moving .in the direction of the arrow 3. During this time the valve p rwill of course be closed and the valve n unseated and. the air will pass through the valve and in the direction of the arrows l until the limit of the outward stroke when the barrel l) will be lilled. On the inward stroke of the piston the valve n will be closed and. the air forced through the nipple o and pipe 02 to the tire, the valve p opening automatically to permit its passage. l It will thus be seen that l provide an apparatus by which the large tires of heavy auton'iobiles may be quickly inflated by the operation of the engine and the inflation may be carried on without attention from the. chaufl'eur and while he is engaged in pieking up his tools after having made a repair', so that b v the time he has assembled his tools and devices the inflation ol" the tire will have been completed. Further, owing to the extreme simplicity of the apparatus it may bev readily attached to any automobile on the market and will require a minimin amount of attention. Further, Where attention is necessary for the puipose of cleaning or grinding the valves, or tightening the -packing this mayY be readily accomplished. The valve p is accessible by simply unscrewing the cap 0 which projects through the open end of the case l), while the other parts are accessible by the removal of one ol the walls e2 of the frame which is made removable for this purpose.

It will be understood that the valve inthe outer end of the pump barrel is not absolutely essential as its action is practically supplemental to. the action ol the check valve within the valve stem of the tire. ln a device of this kind however, which is carried by the automobile in order to reach all of the tires it is necessary to have a hose or tube of consirleal le length with a comparatively small sized pump cylinder, considerable lost motion would result from the compression ol the air within the tube or hose and its expansion on the backward stroke of the plunger. To avoid this l find it desirable to use the check valve at the outer end et the pump barrel.

Having thus described my invention what I claim is:

'1. An apparatus for inllating the pneumatie tire of automobiles comprising a suitable casing having means for attachment to the automobile frame, a pumppivotally mounted in said casing. a tubular plunger having a telescoping connection with'said barrel, crank sha l't journaled in said casing and having its crank connected `with said plunger, suitable check valves l'or controlling the passage of' air, means for operati said crank shaft from the engine of the antonioH bile and means for connecting the pump barrel to the tire to 'be inflated.

2: An apparatus for inflating the pneumatic tires of automobiles, comprising a suitable casing having means for attachment to an automobile frame, a pump barrel having one .end pivotally supported in one end of the casing, a hollow plunger working within the barrel, a crank shaft journaled in the opposite end of the casing and having its crank connected with said plunger, check valves for controlling the flow of air through the plungerand barrel, and means for -conveying the air from' the barrel. to the tire to be inflated. y

3. An apparatus for inflating the ,pneumatie tires of' automobiles, comprising a suitable casing having means for. attachment to an automobile'frame, a pump barrel hav-.

ing one end pivotally supported in one end ol the casing, a hollow plunger working within the barrel, asbestos packing rings between the barrel and plunger, a crank shaft journaled in the opposite end of the casing and having its cran-k connected with said plunger, `check valves for controlling the flow of air through the plunger and barrel, and means for convevine'the air from the barrel to the tire to -be inflated. v

4. An apparatus for inflatingautomobile tires comprising a suitable casing having .means for attachment to an automobile frame, said casing having anA open end, a pump barrel having one end pivotally mounted in proximity to said open end, a plunger working within the opposite end ofthe barrel.

and having an air passage through the same, a check valve in said plunger, an operating shaft journaled in the opposite end ofsaid casing having nn operating connection to the plunger, and a nipple carried by the barrel and projecting from the open end of the easing l'or the attachment of an air hose or pipe.

An apparatus for intl-ating automobile tires comprising a suitable easing having means for attachment to an automobile vframe, said easing having an open end, a

pump barrel having one en d pivotally mount.

ed in proximity to said open end, a plunger working within the opposite end of the barrel and having an air passage through the same, a check valve in said plunger, van operating shaft journaled in the opposite end of said casing having'an operating connection to the plunger, a rap carried by the en d of the .barrel accessible. through said open end, check valve within said cap, and a nipple on the cap for the allnrhment ol` an air hose.

ln testimony whereof ,l have` signed my name to this speciiication in the presence of' ln'o subscribing ivi.

Al il), lil lll J. l. 'Dit FF IHN.

itunes Y F B. Iiihisox, ltuciinii'rn T. KACKEMANN. 

